Principle of Least Action I
The least action principle is an expression of teleological reasoning where the initial states of the system are determined by the endpoints—the beginning and the end.
Primordial Serpent—the Incurable Atomist
Now the Serpent was more cunning than any beast of the field which the Eternal G‑d had made. (Genesis 3:1) When G‑d placed Adam in the Garden of Eden, He issued a decree: And the Eternal G‑d commanded the man, saying: “Of every tree of the garden thou mayest freely eat.” (Genesis 2:16) Having commanded man to eat from every tree of the garden, including the Tree of Life and the Tree of Knowledge, G‑d qualified His command: “but of the tree of the knowledge of good and evil, thou shalt not eat of it; for in the day that thou eatest thereof thou shalt surely die.” (Genesis 2:17) There appears to be some dissonance between verses 16 and 17. Verse 16 uses two words, akhol tokhel, each of which shares the [...]
Passover Seder—The Arrow of Time
The Passover Seder is called seder, i.e., "order" not without a reason. It is a highly structured and orchestrated ceremony that follows the ancient script—Passover Haggadah. The Seders is a play in four acts: Kiddush (sanctification), Magid (telling the story of the Exodus), Shulchan Orech (the festive meal), and Nirtzah (Hallel—the prayer for the Messianic redemption). This sequence sets the natural arrow of time past-present-future. The Past. During the Magid part of the Seder, we retell the story of the Exodus of the Jewish people from Egypt—the narrative of our history. Eating of the matzah, drinking four cups of wine and other "simonim" (symbols) of the Seder table—bitter herbs, an egg, a bone, charoset, etc.—are all symbols that have historical significance. This part of the Seder clearly represents the past. The Present. During [...]